笔者今年6月在科尔沁左翼后旗甘旗卡苗圃调查时发现,他们自行研制的简易喷灌机,只有简便、易行、经济、实用的特点,很有推广价值。目前“三北”地区造林,多数以杨树为主,大面积纯阔叶林弊端很多。为提高造林质量,增加针叶树造林比重势在必行。但目前培育针叶树苗由于缺少灌溉设施而受到限制。如果使用这种筛易喷灌 In June this year, after investigating the Ganqiancao Nursery at the Houqin Left Banner of the Horqin, I found that the simple irrigation machine developed by them is simple, easy, economical and practical and has great promotion value. At present, the afforestation in the “Three Norths” region is dominated by poplars, and large-area pure-broadleaf forests have many disadvantages. In order to improve the quality of afforestation, it is imperative to increase the proportion of conifers afforestation. However, the current cultivation of conifers is limited by the lack of irrigation facilities. If using this sieve spray irrigation